mirror/guile
mirror/guile
1
Fork 0
mirror of https://git.savannah.gnu.org/git/guile.git synced 2025-06-18 01:30:27 +02:00
Code Activity

Unwind-only stack overflow exceptions

Browse source 
* module/ice-9/boot-9.scm (catch): Signal an early error if the handler
  or pre-unwind handler types aren't right.  This is more important than
  it was, given that we dispatch on type now when finding matching catch
  clauses.

* libguile/vm.c (vm_expand_stack): Use the standard
  scm_report_stack_overflow to signal stack overflow.  This will avoid
  running pre-unwind handlers.

* libguile/throw.h: Move scm_report_stack_overflow here.

* libguile/throw.c (catch): Define a version of catch in C.
  (throw_without_pre_unwind): New helper.  Besides serving as the
  pre-boot "throw" binding, it allows stack overflow to throw without
  running pre-unwind handlers.
  (scm_catch, scm_catch_with_pre_unwind_handler)
  (scm_with_throw_handler): Use the new catch in C.
  (scm_report_stack_overflow): Moved from stackchk.c; throws an
  unwind-only exception.

* libguile/stackchk.h:
* libguile/stackchk.c: Remove the scm_report_stack_overflow bits.
This commit is contained in:
Andy Wingo 2014-02-20 09:45:01 +01:00
parent 5d20fd49fe
commit 7e2fd4e7f5
6 changed files with 181 additions and 155 deletions
Download patch file Download diff file Expand all files Collapse all files

6
libguile/throw.h
View file

@ -3,7 +3,7 @@
#ifndef SCM_THROW_H
#define SCM_THROW_H
/* Copyright (C) 1995,1996,1998,2000, 2006, 2008, 2010 Free Software Foundation, Inc.
/* Copyright (C) 1995,1996,1998,2000, 2006, 2008, 2010, 2014 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
@ -81,6 +81,10 @@ SCM_API SCM scm_catch (SCM tag, SCM thunk, SCM handler);
SCM_API SCM scm_with_throw_handler (SCM tag, SCM thunk, SCM handler);
SCM_API SCM scm_ithrow (SCM key, SCM args, int no_return);
/* This throws to the `stack-overflow' key, without running pre-unwind
handlers. */
SCM_API void scm_report_stack_overflow (void);
SCM_API SCM scm_throw (SCM key, SCM args);
SCM_INTERNAL void scm_init_throw (void);